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Finding the Fourth Proportional to 296,600.10, 444,856.95 and 86,216.10

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Solution

The fourth proportional to 296,600.10, 444,856.95 and 86,216.10 is: 129,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,600.10 : 444,856.95 = 86,216.10 : x
  2. Step 2: Convert to fraction form
    296,600.10/444,856.95 = 86,216.10/x
  3. Step 3: Cross multiply
    296,600.10x = 444,856.95 × 86,216.10
  4. Step 4: Simplify right side
    296,600.10x = 38,353,831,286.90
  5. Step 5: Solve for x
    x = 38,353,831,286.90/296,600.10
  6. Step 6: Final answer
    x = 129,311.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.